AM_NH4H2AsO4
Formula: As N O4 H6
Name: NH4H2AsO4
Unit cell: 7.6998 7.6998 7.7158 90.0 90.0 90.0 , V=457.45
Space group: I-42D (122)

Khan A A , Baur W H , Acta Crystallographica, Section B , 29 (1973) p.2721-2726, Refinement of the crystal structures of ammonium dihydrogen phosphate and, ammonium dihydrogen arsenate, Note: known as ADA